An ancient PMm received by Degtyarev as a reward for "Succesful execution of highly dangerous state orders, as well as valor and courage shown in the line of duty."In-game description
The Honorary PMm Pistol, called Commemorative PMm or Ceremonial Makarov in some translations, is a unique weapon featured only in S.T.A.L.K.E.R.: Call of Pripyat.
Call of Pripyat
The player starts with this weapon in the inventory as their standard sidearm. Apart from the engraving, this weapon is twice as durable as a normal PMm, making it the most durable firearm in the Zone, both before and after upgrades.
However just like a normal PMm other stats are nothing to talk about, so it's up to the player whether to choose between utility and performance.